[The battleship of the pig's foot is finally about to depart~~ Brothers, smash the ^_^ ticket]

In the past four months, in order to turn this new turret design from a drawing to a finished product, considering that the turret and the lifting device are completely new designs, Qin Kai had to ask the German ship engineer Andrew and several other engineers with rich experience in gun installation to participate in the production of the entire turret, and he needed to rely on their experience and ability.

In his diary, Andrew chronicles the history of the development of the Chinese carrier-based battery, which later became known as the PT80:

When we were involved in the construction of the twin turret guns designed by the Mawei Shipmaster, it was hard to believe that there could be such a genius designer in this country with a weak industrial base. Joseph, who was involved in the turret fabrication, was a technician at the Krupp Artillery Company, and during the discussion, he told me very frankly that the Krupp Company had no such design. The latest Krupp shipborne guns were designed for the Ironclad Fort......

After three months of construction, we finally completed the extraordinary installation of the twin naval guns, participated in this era-making work, so that hundreds of Chinese skilled workers quickly came into contact with the most advanced manufacturing technology, the entire turret and the lifting device weighed 90 tons, and the twin guns also reached an astonishing 30 tons, from this amazing big guy, the workers of the Mawei Shipyard learned and developed dozens of kinds of manufacturing technology, and the 200 tons of air hammer newly developed by the Mawei Shipmaster provided great help for this work.

After the installation of the all-directional turret developed by the Mawei Artillery Bureau, the twin 254mm (26 times the caliber) cannon can be rotated 270 degrees left and right, and the pitch can be adjusted by 30 degrees, and the ammunition loading is imitated by the German-designed lifting machine, and the rotation of the turret uses steam power and hydraulic control roller transmission, and the operation performance is good, and the 270-degree rotation can be completed in 30 seconds.

As a direct consequence of the use of twin guns, the 501 ship, which was originally designed for 3500 tonnage, had a displacement of 3700 tons after the addition of guns and a new turret. The average draft has increased from 5.5m to 5.65m, but the improved HW-1 reciprocating steam turbine and double expansion steam engine have increased the power of the ship, the horsepower of the steam engine has increased from 3500 horsepower to 4300 horsepower, and the maximum speed of the 501 ship has reached an astonishing 16 knots, and the economical cruising speed of 10 knots is calculated, and if you carry 500 tons of coal, the cruising distance is 7000 kilometers.

The training ship has been trained several times under the command of Lu Han, of course, out of the caution of Qin Kai, all of them are traveling through the channel of the Min River in the early morning, and the training has obtained a rich number of tests of 254 caliber artillery firing, and the ship's 120 caliber rapid-fire guns have also been tested, and the number of detailed records has been submitted to the Artillery Bureau for study.

Of course, today Qin Kai came with this large group of people, naturally there was something else, in the era of ironclad ships, due to the widespread use of rifled guns, the accuracy of the artillery trajectory was greatly improved, and the early smoothbore guns could reach 200 meters at a distance of two thousand meters even if they were fired at the same angle, which could almost be said to be completely inaccurate.

However, there are too many factors to consider when shooting on a battleship, such as the ups and downs of the battleship, the sway from side to side, the speed of travel, and so on. In the test of this era, the US Navy fired more than 200 shells at a moving target ship 2,800 meters away, and only two of them were directly hit, which shows the difficulty of war at sea.

In order to solve this problem, Qin Kai paid a high salary to let two technicians from the German Zeiss company take more than a dozen technicians to learn the technology of this optical equipment, and under his guidance, completed the first generation of GX10 baseline rangefinder, through two sets of lens imaging, when the imaging in both eyes coincided, the angle was read out through the guò dial, and then the distance was calculated through the length of the baseline.

The first-generation GX10 was tested in production using a baseline of 10 meters, a 20x lens group, and a test error of ±150 meters within 5 kilometers, which has reached the minimum accuracy requirements for practical applications.

What makes Qin Kai depressed is that the current technical force at hand is completely insufficient to develop advanced optical instruments, although he has various advanced ideas, lacks the technical precision of optical lens technology and precision machining, and without relying on German technicians, he can not find anyone to realize the production of this kind of precision optical instruments, and the source of lenses completely depends on Schleier's direct import from Zeiss in Germany.

Three sets of rangefinders were installed in the command and front and rear main turrets, and Liao Dechang was responsible for installing a hand-cranked telephone system based on the principle of wire signal transmission, which was a novelty, and the officers were amazed at this thing that could talk between the command cabin and the ship's turret with a shake. ,

Most of these soldiers and officers on the training ship are from the Mawei Ship Master School, and the rest have also learned new learning, which provides good conditions for the use of these new equipment, Qin Kai asked Lu Han to suspend today's training, and the technical workers of the optical rangefinder gave a field explanation, because it involves the operation of trigonometric functions, Qin Kai specially made a comparison table, and according to the measurement angle, it is easy to check the table and calculate the distance.

Qin Kai also brought Lu Han and Xu Shoushan to discuss the reform of the warship's command system alone. At present, the effective command method of the Nanyang and Beiyang naval divisions comes from some British naval officers recommended by the Briton Hurd, and the system is basically applied to the era of sail warships more than ten years ago, and two officers are assigned to command the front and rear main guns and each secondary gun, and the command room is responsible for setting targets.

Now Qin Kai's requirements are to add two groups of artillery firing officers on the left and right sides of the command room, the first group is the main gun firing officer, the first person is responsible for using the indirect observation and ranging command system to judge the target distance, the second person is responsible for calculating the elevation angle of artillery shooting and the turret rotation angle, and the third person is responsible for conveying the firing order; The other group is the commander of the rapid-fire secondary gun, which is responsible for attacking close hostile targets, and the two groups of artillery firing officers can be rotated.

Lu Han and Xu Shoushan still have some doubts about this unified command of the artillery battle, after all, the Nanyang Naval Division has been established for more than ten years, and the training received by the artillery position officer is responsible for artillery shooting, the two glanced at each other, Xu Shoushan first asked: "My lord, this optical ranging is very practical, but the change of this artillery shooting plan seems to be different from the usual practice of the naval division, I think Gengtang and I think it can be postponed?" ”

Qin Kai smiled, he knew that Lu Han and Xu Shoushan would definitely mention this question, after all, this was a complete subversion of the traditional concept of artillery shooting, but this was an artillery shooting method based on scientific design, and the long-range shooting of artillery in this era was still at a very low level, and proposing this plan by himself would naturally cause doubts.

"Gengtang and Yushan remember that I once said that when you enter the training camp, please trust me unconditionally! , I will only give a simple explanation, if the three twin 10-inch breech guns on the 501 ship were under the command of three officers, what state do you think would appear at this landing point? And with a unified firing angle and steering shooting, what kind of landing point? ”

Qin Kai did not continue to explain after speaking, this change of concept could not rely on indoctrination, but for these two future warship commanders to think.

In the shelling of a single body, the landing point is naturally in a disorderly state, and when the artillery is fired in the form of a row of guns, the landing point presents a straight line, and the warships within the straight line will be hit, which is the inevitable result of the disorderly development to order, and Lu Han and Xu Shoushan realized some truths after pondering for a while.

Qin Kai smiled slightly, "Cousin Geng, Brother Yushan, practice is the test of the truth, we are about to carry out the first voyage mission in the near future, the two of them should pay close attention to the selection of artillery shooting officers, who has the ability, who is on the post, don't be discouraged if you don't choose, our training camp will not always have only one ironclad ship, tell them, the opportunity will always be left to the powerful!" ”

Lu Han smiled and asked: "Supervisor, there is another matter to discuss with you, I take the soldiers to play this practice bullet every day, these people are tired of practicing, the 50 shells allocated last time have already been finished, you see if you can allocate some more live ammunition, I will take them to the sea to practice in the next few days!" ”

In fact, this can't be blamed on Qin Kai, now the artillery bureau's shell workshop is still in a state of trial operation, and the production technology of the workers is also running-in, and the most important thing is that now the new single-base smokeless gunpowder has been put into small batch production, while the old-fashioned maroon gunpowder is in a state of discontinuation.

"Cousin Geng, that's okay, the main gun and the secondary gun each allocate 50 shells, and the medicine package is replenished at a ratio of 1 to 4, you have to save some money, it is not easy for our artillery bureau to earn this bit of silver, maroon gunpowder and smokeless gunpowder are sent to the training ship at 4:1!" This is all money burned, a 280 main gun shell costs 70 kilograms to launch the medicine pack, not to mention the cost of this shell, thinking of this, Qin Kai made up his mind, he must find Ding Tieji to pour some maroon explosives, even for training!

In the next ten days, Liao Dechang and more than a dozen optical equipment technicians stayed on the 501 ship to listen to the requirements of the officers and crew for the use of the new equipment at any time, which will be an important basis for the next improvement. For these new equipment, the officers and soldiers of the naval division who take the battleship as their home are naturally very cherished, and with this thing, when they meet the enemy at sea, they definitely have the advantage of being the first mover, which makes them invisibly have a little more confidence, so they are very friendly to these technicians. ,

It was dark, Liao Dechang had just come down from the 501 ship, and a new telephone line had just been re-laid today, which was based on the meaning of the pipe belt Lu Han, considering that a part of the battle might be shelled and cause the wire to break, so prepare a backup path.

In just a few months in Mawei, he has been promoted to the position of deputy director of the machine tool workshop, you must know that this machine tool workshop is the place where the supervisor Qin Daren made his fortune, where a steady stream of textile machines, dyeing machines, large punches, and hydraulic presses have long been the glory of the Artillery Bureau today.

But the deeper he became involved, the more painful he became. He hurried to the canteen of the artillery bureau, ate some food haphazardly, took out a piece of paper from his bosom, looked at it carefully, thought about it for a while, and hurried out of the gate of the artillery bureau.

It was Qi Fang who was in charge of guarding the gate today, Liao Dechang he knew, and he greeted from afar: "Director Liao, go out so late!" ”

"Xiao Qi, I'm going out to do something, and a fellow is coming, go pick up someone!"

Qi Fang remembered Instructor Zhang's words, and hurriedly followed, "Director Liao, I heard that it is not peaceful outside during this time, be careful!" ”

Liao Dechang nodded, walked out, and a carriage appeared in front of him not far away, and after talking a few words with the people in the car, he got into the car and left.

Early the next morning, after Qin Kai routinely participated in the morning training, according to the usual practice, he talked with Lu Han and Xu Shoushan about the training camp.

For the quick calculation of artillery shooting, Qin Kai specially called these two officers out and asked them to talk about their experiences, but they did not expect that the two of them climbed on the battleship every day for more than ten days, measured the visible objects around them with a rangefinder, and then measured the distance on the spot to detect the reasons for the error.

Of course, the two also raised a lot of questions, mainly this rangefinder relies on the principle of different lens imaging through the human eye to measure the angle, which mostly relies on personal experience, and the scale of the fine-tuning is too large, and it is often found that the fine-tuning can not reach the minimum accuracy required, and the two put forward some opinions on this.

Qin Kai also wrote them down one by one, he understood that this is still a problem in fine processing, Europe has been playing in this area for more than a hundred years, although the technicians on his side are also very diligent, but this technical process is not something that can be improved in a day or two, it is these German technicians, because they are not doing fine processing, this aspect is somewhat lacking.

He also recorded this, two days later Consul Schleier will come, he can get a lot of good things this time, he is not asking for many things, the most important thing is that he is completely blank on the side of those technology, this aspect only has his own information, there is no technical personnel who can work, he is somewhat a bit of a clever woman without rice.

"Supervise, supervise!"

Suddenly, Qin Kai heard what seemed to be Xu Guofang's voice calling him, turned his head and looked, sure enough, it was him, and seeing Xu Guofang's face didn't seem to be very good, he hurriedly said hello to Lu Han and went out.

"Guofang, what's going on? I've never seen you so flustered! Qin Kai joked lightly.

"It's Liao Dechang, I couldn't find anyone else this morning, I went to the door and asked, it was Qi Fang's group on duty last night, saying that after eating last night, I saw him go out! I'm afraid that something will happen to Liao Dechang, I didn't come back all night, there has never been such a thing! Xu Guofang was obviously quite anxious, and finally explained the matter clearly.

At this time, Qin Kai also realized the severity of the problem, Liao Dechang is already a very high-level person in the Mawei R&D system, because he has research in machine tools and shipbuilding, so he is responsible for the technical research of the three projects, and the R&D progress and results have been quite high in all the components. Such a person suddenly disappeared......

Qin Kai beckoned and called Zhou Ruidong over, "Ruidong, immediately let all the security teams be on standby, if there is an emergency to arrange, you go and arrange it!" ”

Then Qin Kai immediately summoned He Xing, Xu Guofang, Lu Han, Xu Shoushan, and Zhang Kui to meet with some backbones, and briefly explained the situation, He Xing is an old land, and he immediately pointed out that since the other party has a carriage, there are not many places in Fuzhou that can rent a carriage, so you can start with the carriage first. ,

Zhang Kui immediately thought of the assassination of Qin Kai last time, and suggested that this might be the hand of someone from outside, it was obvious that Liao Dechang should know the person who picked him up at the door, and it could be said that there was no intention of taking precautions, and as far as he knew, this Liao supervisor almost didn't go out of the artillery game on weekdays.

Qin Kai naturally knew the current situation, time did not wait for anyone, it had already been a night, anything could happen, a few people pondered for a while and there was no big breakthrough, this week Ruidong had already picked seventy or eighty lively boys from the countryside to standby.

He immediately ordered, divided into ten groups, all changed into civilian clothes, first from the light gray four-wheeled carriage identified by Qi Fang to inquire, there was Zhou Ruidong full command there, at the same time, immediately increased the vigilance of the Mawei shipmaster, in addition to Minggang, two groups of secret sentinels.

He took Zhang Kui to Liao Dechang's residence, and could see that Liao Dechang did not have any intention of leaving suddenly, and there were several design drawings on the big table in the house, and there were a lot of annotations on the pencil on the drawings, the drawings were provided by Qin Kai, but the annotations were all added by himself, and there were a lot of books scattered next to the drawings.

"Zhang Kui, take a closer look, what clues are there!" Qin Kai said, he came to the desk and looked through the books on the table, but there seemed to be nothing of value.

Zhang Kui looked around, and after a while, he suddenly said, "Instructor, there is a pile of letters here!" ”

Qin Kai took it and flipped through it, several letters were private exchanges between a long-term person and Liao Dechang, but it could be seen that this person called Changchang brother seemed to be quite insightful in terms of ships, and he also answered a few questions raised by Liao Dechang many times in the letter, but in addition, there was no confidential matter.

looked at the address and payment on the envelope, this person was a former colleague of Liao Dechang, a person named Hu Changyuan from Guangzhou Huangpu Shipyard, Qin Kai put down the letter, although this person was a little suspicious, but as far as he judged, a person who engaged in technology would not generally engage in violent work such as kidnapping.

Qin Kai looked at the other empty envelope over and over again, but he couldn't see anything famous, and threw it on the table, but Zhang Kui took it and looked at it over and over again.

"Zhang Kui, do you have any clues in this envelope?"

"I have a feeling that this envelope should guide us!" Zhang Kui's old illness has flares up again.

"Okay, okay, Zhang Kui, let's put it away if you have P" Qin Kai said lazily, this guy has such a temper.

"Instructor! I have found an important inference," Zhang Kui gouged out his ears in protest, "This envelope is only used in the Jinyun Inn in the city, you see there is a cloud pattern in the lower right corner, I think this person should not come to deliver the letter in person, go and ask where the little guy is, you should know a lot of news!" ”

“…… It's really you," Qin Kai immediately went out, took a few people into the carriage and went straight to Fuzhou City.

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